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Round|Lab Grown|IGI

1.03ct D SI2 Round Lab Grown Diamond

VG • D/SI2 • IGI LG550265363

Shape and cutting style on the report: Round brilliant

Certificate IGI LG550265363

Diamond specifications and retailer prices

From $436 AUD
As of November 6, 2026
Save $760 AUD (64%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,196 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG550265363 or 550265363. Listed at 5 retailers as of November 4, 2026, with prices from $436 to $1,196, a $760 spread on the same certified stone. MOH London lists it at $1,196. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550265363
Dimensions6.46 × 6.42 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.46 mm6.42 mm1.03 ctD / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG550265363
Side View
Table 58.5%Crown 37.1°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,196 AUD|Low: $346 AUD|High: $1,303 AUD|Avg: $653 AUD|-7.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$436 AUD
Retailer 3$476 AUD
Retailer 5$500 AUD
Retailer 4$607 AUD
MOH London$1,196 AUD

43 data points across 5 retailers

5 retailers$436 AUD to $1,196 AUD

B+
Cheapest Retailer
-
$436 AUD
B+
Retailer 2
-
$476 AUD
View
B+
Retailer 3
-
$500 AUD
View
B
Retailer 4
-
$607 AUD
View
Most Expensive
B
MOH London
LG550265363 · Nov 4
$1,196 AUD
£659 GBP
View
4 more retailers have this diamond
Prices start from $436 AUDSave up to $760 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.03ct Round
$436 AUD